/*
 * Copyright 2011-2015 Jason Rush and John Flanagan. All rights reserved.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

#import <Foundation/Foundation.h>

@interface PasswordUtils : NSObject

+ (NSData *)generateSaltOfSize:(NSInteger)size;

+ (NSString *)hashPassword:(NSString *)password withSalt:(NSData *)salt andRounds:(NSUInteger)rounds andKeySize:(NSInteger)keySize;
+ (NSString *)hashPassword:(NSString *)password;

+ (BOOL)validatePassword:(NSString *)password againstHash:(NSString *)hash;

+ (NSData *)dataFromHexString:(NSString *)string;
+ (NSString *)hexStringFromData:(NSData *)data;

@end
